Can Paper Maps Be Used Effectively in Heavy Rain?

Waterproofing Techniques

When using paper maps in heavy rain, it’s crucial to have a waterproofing plan in place. One method is to laminate the map using a clear plastic sheet, such as a laminator or a contact sheet. This will provide a waterproof barrier between the map and the elements. Alternatively, you can use a waterproofing spray, such as Scotchgard or Nikwax, to coat the map. Allow the spray to dry completely before folding or storing the map. For added protection, consider carrying a clear plastic bag or dry sack to store the map when not in use.

Map Handling and Storage

To minimize damage from rain, handle the map with dry hands and store it in a dry, secure location when not in use. When navigating, try to keep the map relatively flat and avoid folding it excessively, as this can cause water to seep in. If the map does become wet, try to remove excess water by gently blotting it with a soft cloth or paper towels. Avoid rubbing or scrubbing the map, as this can cause damage to the paper or ink.

Choosing the Right Maps

When selecting a paper map for wilderness navigation, consider the materials used in its construction. Look for maps printed on waterproof paper, such as those made from synthetic materials like Mylar or Tyvek. These types of paper are more resistant to water damage and can withstand heavy rain. Additionally, consider carrying a backup map in a waterproof container, such as a dry bag or a waterproof case, in case your primary map becomes damaged or lost.